/*
 * This file is Copyright 2002-2006 Loyola University Chicago,
 * Department of Computer Science and the Emerging Technologies Laboratory.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License via
 *    http://www.apache.org/licenses/LICENSE-2.0.
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.citep.web.gwt.dto;

import java.util.ArrayList;

import com.google.gwt.user.client.rpc.IsSerializable;

/*
 * Since we are trying to get the GWT interface to be as lightweight as possible,
 * instead of pulling the whole account tree everytime we retrieve an account (to
 * set the parent and children properties), what we do is we have a separate
 * structure called an "account tree".
 * 
 * That way when the UI frontend requires just the account information, it pulls
 * it via the getAccount() method. If it requires the account subtree, then it
 * can pull the entire account tree as well, via the AccountTreeNode structure;
 */
public class AccountTreeNode implements IsSerializable  {
	private AccountTreeNode parent;
	private ArrayList children;
	
	private AccountDTO account;
	
	public void setAccount(AccountDTO account) {
		this.account = account;
	}
	
	public AccountDTO getAccount() {
		return account;
	}
	
	public void setParent(AccountTreeNode parent) {
		this.parent = parent;
	}
	
	public AccountTreeNode getParent() {
		return parent;
	}
	
	public void addChild(AccountTreeNode child) {
		if(children == null)
			children = new ArrayList();
		children.add(child);
	}
	
	public ArrayList getChildren() {
		return children;
	}
	
	public boolean hasChildren() {
		return children != null;
	}
}
